Ready for a serious challenge? With our Festival Of Endurance event, we've got an ultra run through the Ashdown Forest and South Downs. Pick your discipline - triathlon, duathlon, aquabike, aquathlon, swim or run - and choose a distance from the middle to ultra. Recruit your friends and celebrate completing your challenge in our festival village.

Festival Of Endurance Kent (competitors travelling over bridge with bikes)

Venue

Join us for this Festival Of Endurance event at the historical Hever Castle Kent. The childhood home of Anne Boleyn, Hever Castle is a stunning location for a race.

Swim from The Loggia with its Nymph’s Fountain inspired by the Trevi Fountain in Rome. Cycle the beautiful Kent and Sussex countryside up through the Ashdown Forest. Run through the award winning castle grounds and picturesque surrounding villages, not forgetting the South Downs National Park for the Ultra Runners.

Athletes and spectators can enjoy the lovely Hever grounds and a fun-packed festival village featuring live music, shopping, food and drink, children’s entertainment, yoga and more.

Our 2022 Festival Of Endurance event was a huge success and we expect 2023 to be even better!

Book now
Get here

Races

Festival Of Endurance returns in 2023 for a day full of sporting excitement – highlights include our full iron distance, The Bastion and half iron distance, The Gauntlet and our 50 Miler ultra run.

We also have long distnace duathlons, aquathlons, aquabikes, running  and swimming races.

This year, we have added new distances to the Festival Of Endurance program: 34 Miler Ultra Run, 50 Miler Ultra Run Relay, Marathon Run Relay, 10K Swim Relay and the 5K Swim!

We hope you will be one of the first to take part in these new and exciting events!

Race List
Course Maps
Festival Of Endurance Swim
Hever Castle Festival Of Endurance Event Guide

2023 Competitor Guides

Take a look at our competitor guides for The Festival of Endurance 2023!

Read the in-depth Course Guide for your chosen distance and view the Event Guide for partner offerings and full details of what to expect on Race Day,

Event Guide
Gauntlet Course
Swim Run and Multisport Course
Bastion Course
Ultra Run Course

Governing Body

We are delighted to announce that this event is governed by British Triathlon. If you are competing in a triathlon or multisport event you will need a valid membership of day licence to compete.

Purchase BTF Day Licence
BTF rules
British Triathlon - Castle Race Series
Macmillan Competitor Hever Castle Kent

Charity

We are delighted to have partnered with Macmillan Cancer Support for another year after the success of 2022. They do whatever it takes to give people affected by cancer the support they need. Macmillan are going all out to support people with cancer. But they can’t do it without you.

You can support Macmillan by signing up for a charity place and committing to fundraise or making a donation via the registration form.

Learn more
Book Charity Place
Spectators

Spectators

This event is a fantastic day out - we welcome everyone to come along, explore the stunning castle grounds, cheer athletes on from numerous up close viewing spots, enjoy the event village entertainment and soak up the festival atmosphere. Tickets set to discounted prices.

Spectator Tickets - Coming Soon
Bike Hire

Bike Hire

Details on all UK bike hire for our 2023 events coming soon.

Learn more

Pricing and Distances

Discipline
Race
Distance
Full Price
15% DISCOUNT
Day/Time
Triathlon
Bastion ^
3.8K / 180.2K / 42.2K
£395 / £495
£316 / £396
SUN AM
Triathlon
Gauntlet
1.9K / 90K / 21K
£240 / £295
£192 / £236
SUN AM
Duathlon
Long ^
21.5K / 90K / 10.5K
£130
£104
SUN AM
Duathlon
Middle ^
10.5K / 45K / 4K
£80
£64
SUN AM
Aquabike
Long ^
3.8K / 120K
£120
£96
SUN AM
Aquabike
Middle ^
1.9K / 60K
£70
£56
SUN AM
Aquathlon
Long ^
3.8K / 21.5K
£110
£88
SUN AM
Aquathlon
Middle ^
1.9K / 10K
£60
£48
SUN AM
Swim
Marathon ^
10K
£90 / £150
£72 / £120
SUN AM
Swim
5K
5K
£65
£52
SUN AM
Swim
3.8K ^
3.8K
£60
£48
SUN AM
Swim
1.9K ^
1.9K
£50
£40
SUN AM
Run Ultra
The 50 Miler ^
80.5K
£95 / £120
£76 / £96
SUN AM
Run Ultra
The 34 Miler ^
55K
£75 / £100
£60 / £80
SUN AM
Run
Marathon
42.2K
£65 / £80
£52 / £64
SUN AM
Run
Half Marathon
21.1K
£45
£36
SUN AM

Sign up for a discounted charity race place and raise vital funds for people with cancer

Learn more

DIVE IN! SIGN UP TO OUR NEWSLETTER

Keep up to date with exclusive discounts, launches and news.